GERARD is extreme weather resistant. Does it sound reassuring?

GERARD’s Roofing System is designed to withstand just about anything climate change may bring towards your home.

When you want a roof that΄s secure in high winds

Did you know that wind uplift is the primary cause of roof failure?

If high winds can damage your roof it will become exposed to leaks. Then it’s game over. Many roofs become a victim because their old installation technology is unable to withstand winduplift (see our illustration).

That is the reason that at GERARD we developed an extreme wind resistant installation technology. Gerard Roofs lightweight steel tiles are nailed to the roof structure with multiple fasteners, predominantly at 90˚ to wind-lift forces, making them highly secure in strong winds. A significant proportion of clay or concrete tiles are not directly fixed to the roof framing. Because Gerard Roofs interlocking steel tiles are fixed horizontally, each with eight separate fasteners, Gerard roofs are more secure in high winds than vertically fixed alternatives.

The unique, horizontal fastening system of GERARD

Gerard tiles installed with 4 nails spaced at every second tile module (pan) and one at the side lap have been wind load tested to withstand wind loads of  -3.8 kPa. The calculation made for basic velocity v=25m/s (90km/h) give the results which show  the most critical areas on a roof where the suction of equals -1.004 kPa. The arrangement for fastening tiles with 4 nails in the instructions is appropriate.

In the event that increased wind loads are calculated GERARD has a solution that has been tested up to -10.3 kPa for area with cyclonic designation with regional wind speed of 70 m/s (252 km/h).

We’ve heard several stories from all over the world where GERARD roofs could protect homes against very strong winds, even hurricanes.

You don’t want to worry about high winds any longer?

Choose GERARD.

Huge hail stones & Snow? GERARD-PROTECTION is on!

Gerard roof tiles resistant to up to 30 mm hail stones.


Extreme changes in our climate may bring huge hail stones damaging roofs. Not worryproof GERARD roofs! Our roofing system is resistant to damage from hail stones up to 30 mm. Even a massive hail stone as large as 90 mm cannot penetrate GERARD roofs, thus the roof’s weather security remains intact.


Furthermore, a potential life saver is built into every single GERARD profile through the stone chip coating. Its rough texture will not allow snow slides but holds snow in place until it melts naturally and harmlessly. GERARD can withstand snow loading and there is no degradation of the surface coating when exposed to ice or frost!


Winter, ice and snow? With worryproof GERARD roof that means fun!

And even your roof looks better without those ugly snow stops!


Ask our roofers if they ever had to fix a GERARD roof damaged by hail.


A house on fire is better protected with GERARD.

A house on fire can collapse under a heavy roof, but less likely under GERARD’s lightweight, pressed metal roof! GERARD roofing system is resistant to fire as the incombustible steel substrate and surface coating prevents even the spread of flames. With every tile being securely fastened at eight points, there is little chance ofthe roof collapsing and will not allow sparks penetrating through into the house. As a result GERARD roofs have passed stringent international fire tests.

Earthquakes? GERARD-PROTECTION is on!

Being 7 times lighter than concrete or clay roof tiles, extreme weather resistant roof tiles can even withstand smaller earthquakes. There are documented instances of other heavyweight roofing products collapsing homes while GERAD roofs in the same street remained intact and with minimal damage. Weakened walls can tolerate light weight roof and interlocking tiles result in strong roof.

Mr. G

Would you like more information? Ask Mr. G! Join him for a friendly ride!